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Rotating motor

A technology for rotating electrical machines and rotors, applied in the field of rotating electrical machines, can solve the problems of inability to cope with winding collapse of the intermediate layer, inability to prevent winding collapse and winding bulge of stator windings, etc., and achieve the effects of preventing winding bulging and winding collapse.

Inactive Publication Date: 2013-09-11
MITSUBISHI ELECTRIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that if the winding collapse occurs in the intermediate layer to the gap before the additional winding is wound, even if the additional winding is wound on the final layer in this case, the intermediate layer cannot be dealt with. winding collapse
[0009] In other words, conventional rotating electrical machines (Patent Documents 1, 2) have problems in that winding collapse and winding swelling of the stator winding cannot be prevented

Method used

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  • Rotating motor
  • Rotating motor
  • Rotating motor

Examples

Experimental program
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Embodiment approach

[0027] First, the outline of the stator 100 (the correspondence between the reference numerals and the drawings will be described later) of the motor 300 (the correspondence between the reference numerals and the drawings will be described later) according to the embodiment of the present invention will be described. The stator 100 of the motor 300 constitutes a brushless DC motor (hereinafter referred to as a synchronous motor) by combining, for example, a rotor 38 using permanent magnets (the correspondence between reference numerals and drawings will be described later).

[0028] In the embodiment of the present invention, the stator 100 of the motor 300 with 12 slots and 8 poles will be described. The stator 100 of the electric motor 300 has the following features. Correspondence between the respective reference numerals and the drawings will be described later.

[0029] (1) The number of slots of the stator core 1 is 12 (the stator core 1 has 12 tooth portions 1 a ).

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Abstract

A rotating motor comprises: a rotor (38), a stator core (1), an insulating portion (3), and a coil. The stator core (1) includes a plurality of core back portions (1b) and a tooth portion (1a). The cross-sections of the core back portions (1b) are curved. The core back portions are connected into a ring around the rotor (38). The tooth portion (1a) is formed vertically from the rotor (38) of the core back portions (1b). The cross-section of the insulating portion (3) has a curved shape and is arranged at the rotor (38) side of the core back portions (1b). The coil is formed by winding on a region including the tooth portion (1a). The region is formed by the insulating portion (3) stator side, the insulating portion (3) rotor (38) side and a segment connecting both ends of the insulating portion (3).

Description

technical field [0001] The present invention relates to rotating electrical machines, and more particularly to rotating electrical machines in which winding collapse or winding bulging of stator windings is prevented. Background technique [0002] In a conventional rotating electrical machine, when winding a wire around a tooth, after the last layer of the coil is wound, an additional winding is wound in the gap surrounded by the insulation, the tooth, and the coil end surface on the insulation side. Wire. By doing so, gaps are filled, and winding collapse of the coil is prevented (for example, refer to Patent Document 1). [0003] In addition, in the conventional rotating electrical machine, when winding the wire around the tooth portion, the wire is wound from both ends of the tooth portion, and then wound toward the crest of the coil wound on one end portion of the tooth portion. , form the coil layer in the central part with the newly wound winding wire and the collaps...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K3/34H02K3/46H02K15/085
Inventor 小野洵一加藤丈晴
Owner MITSUBISHI ELECTRIC CORP